Wideband nonuniform metasurface antenna with stable gain

被引：0
|
作者：
Han, Guorui [1 ]
Zheng, Zijun [1 ]
Su, Jinrong [1 ]
Yuan, Hao [1 ]
Zhang, Wenmei [1 ]
机构：
[1] Shanxi Univ, Sch Phys & Elect Engn, Taiyuan, Shanxi, Peoples R China
来源：
INTERNATIONAL JOURNAL OF MICROWAVE AND WIRELESS TECHNOLOGIES | 2024年 / 16卷 / 02期
基金：
中国国家自然科学基金;
关键词：
broadside radiation; characteristic mode analysis; metasurface antenna; stable gain; wideband; PATCH ANTENNA;
D O I：
10.1017/S1759078723001034
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel wideband nonuniform metasurface antenna with stable gain is demonstrated. The nonuniform metasurface is composed of square patches and rings and is excited by a slot antenna. Based on characteristic mode analysis, two characteristic modes with same current direction are selected to achieve stable radiation performance in a wide frequency range. The wideband operation is achieved by assembling the resonant modes of the metasurface and slot antenna. The measured results show that the -10 dB impedance bandwidth of the proposed antenna is from 4.3 to 8.4 GHz (64.57%), and the 2 dB gain bandwidth is from 4.3 to 6.2 GHz (36.2%) with a peak gain value of 9.42 dBi. Moreover, broadside radiation performance is achieved.
引用
收藏
页码：268 / 275
页数：8
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